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Author Topic: Why not one more. Snowmobile engine board track "replica"  (Read 21601 times)

Offline Hurco550

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This will be a slow going mod podge of bike/ snowmobile parts I have laying around. Cb550 frame with a weld on hardtail. Planning on using a late 60's NOS hirth one lunger smoker engine I picked up a while back. Looking for a 40 spoke 2ls hub. Cvt clutches so she will be an automatic. Gas and brake is all I'll need to wrangle down the road.

Without further adu, here is to one more project.




« Last Edit: Oct 22, 2018, 14:38:45 by Hurco550 »
"If you want safety and sanity don't mess around with choppers to begin with and don't come crying to me for recommending something that broke down the line. You're going to be the "builder" so use your own judgment and build to you own personal levels of safety and sanity." - Chopper Handbook
1988 tw200, the swamp donkey: http://www.dotheton.com/forum/index.php?topic=75455.0
1975 RD350 Road Racer: http://www.dotheton.com/forum/index.php?topic=70652.msg833688#msg833688
1976 GT250 Rebuild: http://www.dotheton.com/forum/index.php?topic=64973.new#new
Full Custom Pit Bike: http://www.dotheton.com/forum/index.php?topic=66954.new#new
"much ingenuity with a little money is more profitable and amusing than much money without ingenuity" - Arnold Bennet

Offline jimmer

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Re: Why not one more. Snowmobile engine deadtail
« Reply #1 on: Jan 29, 2016, 00:46:46 »
Donaldson tuned muffler for that baby!!!!
Yamaha Blaster Bike                                                                  Suzuki T500 Titan Twingle Yamaha XT 225

Offline stroker crazy

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Re: Why not one more. Snowmobile engine deadtail
« Reply #2 on: Jan 29, 2016, 01:27:53 »
early 70's NOS hirth one lunger smoker engine …

Could you tell me more about this motor? (We don't have much of a snowmobile culture here in Oz).

Crazy
“Ride like the Wind” W.H.

Offline hooligan998

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Re: Why not one more. Snowmobile engine deadtail
« Reply #3 on: Jan 29, 2016, 01:43:02 »
Izzat sumbish a pull start?  I'm in for this one.

Offline Hurco550

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Re: Why not one more. Snowmobile engine deadtail
« Reply #4 on: Jan 29, 2016, 01:43:29 »
I am not the foremost on this motor,but I'll do my best lol. I changed my post, i was made by hirth in the late 60's, and from what dad said, they were a utility engine mainly used for ruining pumps. They were used by several snowmobile manufacturers in the day (boa ski, bolens). Best described as heavy and under powered. Most places say right around 15 horse at the crank. The plan is to 180 the cylinder, hang the carb off the front, and throw a spandy out the back.
"If you want safety and sanity don't mess around with choppers to begin with and don't come crying to me for recommending something that broke down the line. You're going to be the "builder" so use your own judgment and build to you own personal levels of safety and sanity." - Chopper Handbook
1988 tw200, the swamp donkey: http://www.dotheton.com/forum/index.php?topic=75455.0
1975 RD350 Road Racer: http://www.dotheton.com/forum/index.php?topic=70652.msg833688#msg833688
1976 GT250 Rebuild: http://www.dotheton.com/forum/index.php?topic=64973.new#new
Full Custom Pit Bike: http://www.dotheton.com/forum/index.php?topic=66954.new#new
"much ingenuity with a little money is more profitable and amusing than much money without ingenuity" - Arnold Bennet

Offline Hurco550

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Re: Why not one more. Snowmobile engine deadtail
« Reply #5 on: Jan 29, 2016, 01:45:18 »
Disclaimer: the engine in the pic is identical to mine, but it's at dad's house right now, so I grabbed an image off of Google lol

And yep, she is pull start
« Last Edit: Jan 29, 2016, 01:47:02 by hurco550 »
"If you want safety and sanity don't mess around with choppers to begin with and don't come crying to me for recommending something that broke down the line. You're going to be the "builder" so use your own judgment and build to you own personal levels of safety and sanity." - Chopper Handbook
1988 tw200, the swamp donkey: http://www.dotheton.com/forum/index.php?topic=75455.0
1975 RD350 Road Racer: http://www.dotheton.com/forum/index.php?topic=70652.msg833688#msg833688
1976 GT250 Rebuild: http://www.dotheton.com/forum/index.php?topic=64973.new#new
Full Custom Pit Bike: http://www.dotheton.com/forum/index.php?topic=66954.new#new
"much ingenuity with a little money is more profitable and amusing than much money without ingenuity" - Arnold Bennet

Offline canyoncarver

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Re: Why not one more. Snowmobile engine deadtail
« Reply #6 on: Jan 29, 2016, 01:47:10 »
Dude, right on.

Offline JustinLonghorn

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Re: Why not one more. Snowmobile engine deadtail
« Reply #7 on: Jan 29, 2016, 07:28:26 »
I'm in.
I'm going to eat your brains and gain your knowledge.

Into The Sunset, CB750 build

TT500 the Animal

Offline VonYinzer

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Re: Why not one more. Snowmobile engine deadtail
« Reply #8 on: Jan 29, 2016, 08:25:33 »
Lol, awesome.

Like a river that don't know where it's flowin'
I took a wrong turn and just kept goin'

Offline Hurco550

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Re: Why not one more. Snowmobile engine deadtail
« Reply #9 on: Jan 29, 2016, 08:26:14 »
Lol, awesome.
This is still all your fault.... ;)
"If you want safety and sanity don't mess around with choppers to begin with and don't come crying to me for recommending something that broke down the line. You're going to be the "builder" so use your own judgment and build to you own personal levels of safety and sanity." - Chopper Handbook
1988 tw200, the swamp donkey: http://www.dotheton.com/forum/index.php?topic=75455.0
1975 RD350 Road Racer: http://www.dotheton.com/forum/index.php?topic=70652.msg833688#msg833688
1976 GT250 Rebuild: http://www.dotheton.com/forum/index.php?topic=64973.new#new
Full Custom Pit Bike: http://www.dotheton.com/forum/index.php?topic=66954.new#new
"much ingenuity with a little money is more profitable and amusing than much money without ingenuity" - Arnold Bennet